Double-layer air bag elastic sole

A double-layer air bag elastic sole comprises three air bags, an outsole and an insole. Wherein each of the three air bags is composed of an external air bag and an internal supporting column. The outer air bag is cylindrical on the whole, the middle is thinner than the two ends, and the buffering and damping effects are achieved. The inner supporting column is in a hollow cylinder shape with a certain thickness and has the effects of supporting the air bag, cushioning and rebounding. The external air bag is combined with the upper and lower parts of the internal strut by gluing. Concave-convex anti-skid patterns are arranged on the face, making contact with the ground, of the external air bag, and the anti-skid effect is achieved. The three air bags are made of external air bags and internal supporting columns and can be made of the same material or different materials. The three air bags are installed at the positions corresponding to the maximum pressure area of the half sole of a normal person, and after